RIKEN SPring-8 Center Imaging System Development Team
Team Leader: Yukio Takahashi (D.Eng.)
Research Summary

The imaging system development team is developing novel X-ray imaging systems using high brilliant X-rays, and constructing a platform for visualizing materials structure at large spatio-temporal scale. We apply it to the structural imaging of various materials, and expand to industrial utilization research.
Main Research Fields
- Interdisciplinary Science & Engineering
Related Research Fields
- Engineering
- Chemistry
- Informatics
- Biology
- Quantum beam science
- Material engineering
- Nano/Micro science
Keywords
- X-ray Imaging
- Ptychography
- Materials Science
Selected Publications
- 1.
Hirose, M., Shimomura, K., Higashino, T., Ishiguro, N., and Takahashi, Y.:
"Nanoscale determination of interatomic distance by ptychography-EXAFS method using advanced Kirkpatrick-Baez mirror focusing optics"
Journal of Synchrotron Radiation 27, 455-461 (2020). - 2.
Hirose, M., Higashino, T., Ishiguro, N., and Takahashi, Y.:
"Multibeam ptychography with synchrotron hard X-rays"
Optics Express 28, 1216-1224 (2020). - 3.
Hirose, M., Ishiguro, N., Shimomura, K., Nguyen, D.-N., Matsui, H., Dam, H. C., Tada, M., and Takahashi, Y.:
"Oxygen-diffusion-driven oxidation behavior and tracking areas visualized by X-ray spectro-ptychography with unsupervised learning"
Communications Chemistry 2, 50 (2019). - 4.
Shimomura, K., Hirose, M., Higashino, T., and Takahashi, Y.:
"Three-dimensional iterative multislice reconstruction for ptychographic X-ray computed tomography"
Optics Express 26, 31199-31208 (2018). - 5.
Hirose, M., Ishiguro, N., Shimomura, K., Burdet, N., Matsui, H., Tada, M., and Takahashi, Y.:
"Visualization of Heterogeneous Oxygen Storage Behavior in Platinum-Supported Cerium-Zirconium Oxide Three-Way Catalyst particles by Hard X-ray Spectro-Ptychography"
Angewandte Chemie International Edition 130, 1490-1495 (2018). - 6.
Shimomura, K., Hirose, M., and Takahashi, Y.:
"Multislice imaging of integrated circuits by precession X-ray ptychography"
Acta Crystallographica Section A 74, 66-70 (2018). - 7.
Hirose, M., Shimomura, K., Burdet, N., and Takahashi, Y.:
"Use of Kramers-Kronig relation in phase retrieval calculation in X-ray spectro-ptychography"
Optics Express 25, 8593-8603 (2017). - 8.
Suzuki, A., Shimomura, K., Hirose, M., Burdet, N., and Takahashi, Y.:
"Dark-field X-ray ptychography: Towards high-resolution imaging of thick and unstained biological specimens"
Scientific Reports 6, 35060 (2016). - 9.
Hirose, M., Shimomura, K., Suzuki, A., Burdet, N., and Takahashi, Y.:
"Multiple defocused coherent diffraction imaging: Method for simultaneously reconstructing objects and probe using X-ray free-electron lasers"
Optics Express 24, 11917-11925 (2016). - 10.
Burdet, N., Shimomura, K., Hirose, M., Suzuki, A., and Takahashi, Y.:
"Efficient use of coherent X-rays in ptychography: Towards high-resolution and high-throughput observation of weak-phase objects"
Applied Physics Letters 108, 071103 (2016).
Lab Members
Principal investigator
- Yukio Takahashi
- Team Leader
Contact Information
1-1-1 Kouto, Sayo-cho
Sayo-gun, Hyogo
679-5148 Japan
Email: yukio [at] spring8.or.jp